New research questions 'whiff of oxygen' in Earth's early history

Evidence arguing for a "whiff of oxygen" before the Earth's Great Oxygenation Event 2.3 billion years ago are chemical signatures that were probably introduced at a much later time, according to research published in Science ...

Crows keep special tools extra safe

Just like humans, New Caledonian crows are particularly careful when handling their most valuable tools, according to a new study by researchers from the University of St Andrews and the Max Planck Institute of Animal Behavior ...

Angelenos versus New Yorkers: What do they talk about online?

A team of computer scientists at the USC Viterbi School of Engineering set out to develop new tools automate and organize social science data. What did they use as their data sets? Twitter posts from the coastal capitals, ...

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